James howorth



(No Model.)

J. HOWORTH. APPARATUS FOR COOLING, WARMING, MOISTENING, OR

SATURATING AIR. No. 406,216. Patented July 2, 1889.

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Via/1m 'b -miL W 7 am UNITED STATES PATENT OFFICE.

JAMES H Ol/VORTH, OF FARNW ORTH, COUNTY OF LANCASTER, ENGLAND.

APPARATUS FOR COOLING, WARMING, MOISTENlNG, OR SATURATING AIR.

SPECIFICATION forming part of Letters Patent No. 406,216, dated July 2,1889. Application filed December 4:, 1888, Serial No. 292,661. (Nomodel.) Patented in England March 5 1886, No. 3,134.

To all whom it may concern:

Be it known that I, JAMES I'IOWOR'IH, ventilator-manufact-urer, asubject of the Queen of Great Britain, residing at Farnworth, in thecounty of Lancaster, England, have invented certain Improvements inApparatus for Cooling, arming, Moistening, or saturating Air, (for whichI have obtained a patent in Great Britain, No. 3,134, dated 5th day ofMarch, 1886,) of which the following is a specification.

My invention relates to apparatus for cooling, warming, moistening, orsaturating air which is supplied to mills, weaving-sheds, factories,churches, schools, halls, dwellings, and buildings of all descriptions;and it consists in an improved arrangement or construction of suchapparatus, by means of which any desired degree of temperature andhumidity of the air can be obtained.

In order that my invention may be more readily understood and carriedinto practical effect, I have hereunto appended a sheet of drawingsmarked with letters of reference, similar letters denoting similar partsin'the different figures.

Figure 1 is a top view of the apparatus; Fig. 2, a longitudinal sectionof the same along the line X WV on Fig. 4 Fig. 3, a similar sectionalong line Y Z on Fig. 4; Fig. 4, an endyiew from the left side, partlyin section, along the line U V 011 Fig. 2; Fig. 5, an end view from theright side of the apparatus; Fig. (3, a longitudinal section similar toFig. 3, showing an arrangement, hereinafter described, for supplyingtheapparatus with the water condensed in the heating-pipe.

The apparatus consists of a chamber, oasing, or chest A, hereinaftercalled the chest, constructed of galvanized sheet-iron or othermetal,which is generally of rectangular shape, as shown on the drawings,but maybe of any other shape suitable for the locality or position inwhich it is to be placed in the building and for the reception of thefittings hereinafter described. lower part by a mid-feather ordividing-plate Zinto two compartments, one of which, hereinafter calledthe dry compartment, has

an inlet at or near the bottom for the air to enter the chest, as shownat C on Fig. 4. In

This chest is divided in its this compartment a serpentine or coiledpipe I), or its equivalent, is placed, having an inletpipe a, with aregulating valve or tap a at the top, and an outlet-pipe g, with aregulatingtap g at the bottom. The second compartment, hereinaftercalled the Wet compartment, is partly filled with Water 70 through asupply-pipe d with tap cl and fitted with an overflow-pipe e for wasteWater. A pipe 0 passes through the water, and is fitted with aregulating valve or tap c and an outlet-pipe f with tap f. A hood ordeflecting-plate 1' is fixed above the coil bin the dry compartment andextends over the dividing-plate nearly to the bottom of the wetcompartment.

WVhen warm and moist air is required, the coil 12 and pipe 0 aresupplied with steam through the taps a and 0, respectively, and

the waste steam and Water formed by condensation from the coil 1) arelet out through thetap g and pipe g and from the pipe 0 through the tapf and pipe f. The air enters the dry compartment ator near the bottom,as shown at O on Fig. 4 and indicated by the arrow, and becoming heatedby contact with and radiation from the coil b ascends to the top, whereit is deflected by the deflectingplate t and made to impinge upon thewater It in the wet compartment. The Water being heated by the steam inpipe 0 evolves vapor and the air mixes or becomes saturated with thevapor from the Water. It then ascends to the top of the casing orchamber and passes into the room through the diffusing-grid h,hereinafter described. The apparatus is generally placed against theouter walls of the room or building and the inlet at the-bottomprolonged to or placed in communication with the outside, and anyordinary or known kind of dust-strainer may be placed in the inlet andthe air caused to flow in the direction hereinbefore described, andindicated by the arrows on Fig. 4, through being heated in the chest; orit may be drawn through it by ventilators or exhausters placed at theopposite side of the room or in the ceiling or by chimney-draft, or maybe forced through it by fans or blowers.

By regulating the supply of steam and Water the temperature and humidityof the air can be regulated to any desired degree.

If dry warm air is required, the wet compartment is left without water,while the coil 1) and pipe 0 are supplied with steam. If the air is tobe cooled, the steam is shut off, and instead thereof cold water orother refrigeratingliquid may be circulated in the pipes and the coldair may be delivered dry or moist, according as the wet compartment isfilled with water or left empty. No matter what the condition of the airmay be before entering the chest, it may be purified and renderedsuitable for inhalation. In dry weather it may be moistened to anydegrceof humidity. In cold weather it maybe heated to any temperature, and inhot weather cooled to any required degree.

The air enters the room from the apparatus through the diffusing-grid72., which may be placed on the top of the casing or chamber; or thelatter may be closed at the top and have a lateral outlet fitted withthe diffusing-grid, as maybe required by the position of the apparatusin the room or building. The diffusing-grid consists of a frame made, byprefer ence, of wood with wooden bars of triangular or trapeze-shapedsection, placed with the broadest side toward the inside of the casingor chamber and parallel to each other, so that the air can pass betweenthem, and entering at a narrow space becomes diffused througha widerspace and passes into the room without perceptible draft.

A further improvement of the apparatus when used for supplying warmmoist air is shown on Fig. 6, and consists in an arrangement for takingthe waste steam and water formed by condensation from the pipe whichheats the water in the wet compartment back into this compartment. Thisis effected by carrying the pipe 0 upward as it leaves thewater-compartment, and making it in the form of a siphon with its bentend extending down into the water-compartment into which it discharges.By means of the regulatingt-ap f on this siphon-pipe and the tap c onthe pipe 0 the pressure can be so regulated that the waste steam andwater formed by condensation in the heating-pipe, instead of beingcarried away into a drain or collectingtank, are returned into the wetcompartment and emptied into the water 70. By this means the compartmentis continually supplied with water in small quantities for the purposeof generating vapor for saturating the air in the l1ereinbeforedescribed manner. By this siphon arrangei'nent a saving is effected inthe quantity of water used, and the pipes for carrying away the waterformed by condensation may be dispensed with.

I claim An apparatus for cooling, heating, or moistening air, consistingof a box divided by a dividing-plate into two compartments at its lowerpart, the dry compartment having an air-inlet at the bottom andcontaining a coil of pipe for steam or refrigerating-liquid, and at thetop a hood or deflecting-plate extending over the dividing-plate todeflect the air into the wet compartment, which latter contains asteanrpipe and stop-cocks for the pipes, as and for the purposes setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

' JAMES IIOVVORTII.

Witnesses:

JAMES DUTTON, Solicitor, 19 Acresficld, Bolton.

\VALTER JAMES .IIEWETT, Grown Buildings, jHorwlch, his Clerk.

